SCR_ScenarioFrameworkTaskDefend.c

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//------------------------------------------------------------------------------------------------
class SCR_TaskDefendClass: SCR_ScenarioFrameworkTaskClass
{
};
 
//------------------------------------------------------------------------------------------------
class SCR_TaskDefend : SCR_ScenarioFrameworkTask
{   
    //------------------------------------------------------------------------------------------------
    void OnObjectDamage(EDamageState state)
    {
        if (state != EDamageState.DESTROYED || !m_Asset || !m_SupportEntity)
            return;
        
        SCR_DamageManagerComponent objectDmgManager = SCR_DamageManagerComponent.Cast(SCR_DamageManagerComponent.GetDamageManager(m_Asset));
        if (objectDmgManager)
        {
            objectDmgManager.GetOnDamageStateChanged().Remove(OnObjectDamage);
            GetGame().GetCallqueue().Remove(CheckEngineDrowned);
            
            VehicleControllerComponent_SA vehicleController = VehicleControllerComponent_SA.Cast(m_Asset.FindComponent(VehicleControllerComponent_SA));
            if (vehicleController)
                vehicleController.GetOnEngineStop().Remove(CheckEngineDrowned);
        }
                
        m_SupportEntity.FailTask(this);             
    }
    
    //------------------------------------------------------------------------------------------------
    void CheckEngineDrowned()
    {
        if (!m_Asset || !m_SupportEntity)
            return;
        
        VehicleControllerComponent_SA vehicleController = VehicleControllerComponent_SA.Cast(m_Asset.FindComponent(VehicleControllerComponent_SA));
        if (vehicleController && vehicleController.GetEngineDrowned())
        {
            vehicleController.GetOnEngineStop().Remove(CheckEngineDrowned);
            GetGame().GetCallqueue().Remove(CheckEngineDrowned);
            
            SCR_DamageManagerComponent objectDmgManager = SCR_DamageManagerComponent.Cast(SCR_DamageManagerComponent.GetDamageManager(m_Asset));
            if (objectDmgManager)
                objectDmgManager.GetOnDamageStateChanged().Remove(OnObjectDamage);
            
            m_SupportEntity.FailTask(this); 
        }
    }
    
    //------------------------------------------------------------------------------------------------
    override void RehookTaskAsset(IEntity object)
    {
        if (!object)
            return;
        
        m_Asset = object;
        
        SCR_DamageManagerComponent objectDmgManager = SCR_DamageManagerComponent.Cast(SCR_DamageManagerComponent.GetDamageManager(m_Asset));
        if (objectDmgManager)
            objectDmgManager.GetOnDamageStateChanged().Insert(OnObjectDamage);
        
        if (Vehicle.Cast(m_Asset))
        {
            VehicleControllerComponent_SA vehicleController = VehicleControllerComponent_SA.Cast(m_Asset.FindComponent(VehicleControllerComponent_SA));
            if (vehicleController)
                vehicleController.GetOnEngineStop().Insert(CheckEngineDrowned);
            
            // Since there is no invoker and no reliable way how to tackle drowned vehicles, in order to make it reliable,
            // We cannot solely rely on GetOnEngineStop because vehicle could have been pushed/moved into the water without started engine.
            GetGame().GetCallqueue().CallLater(CheckEngineDrowned, 5000, true);
        }
    }
        
    //------------------------------------------------------------------------------------------------
    override bool SetSupportEntity()
    {
        m_SupportEntity = SCR_ScenarioFrameworkTaskDefendSupportEntity.Cast(GetTaskManager().FindSupportEntity(SCR_ScenarioFrameworkTaskDefendSupportEntity));
        
        if (!m_SupportEntity)
        {
            Print("ScenarioFramework: Task Defend support entity not found in the world, task won't be created!", LogLevel.ERROR);
            return false;
        }
 
        return true;
    }
    
    //------------------------------------------------------------------------------------------------
    override void Init()
    {
        super.Init();
                    
        if (!m_Asset)
            return; 
                
        SCR_DamageManagerComponent objectDmgManager = SCR_DamageManagerComponent.Cast(SCR_DamageManagerComponent.GetDamageManager(m_Asset));
        if (objectDmgManager)
            objectDmgManager.GetOnDamageStateChanged().Insert(OnObjectDamage);
        
        if (Vehicle.Cast(m_Asset))
        {
            VehicleControllerComponent_SA vehicleController = VehicleControllerComponent_SA.Cast(m_Asset.FindComponent(VehicleControllerComponent_SA));
            if (vehicleController)
                vehicleController.GetOnEngineStop().Insert(CheckEngineDrowned);
            
            // Since there is no invoker and no reliable way how to tackle drowned vehicles, in order to make it reliable,
            // We cannot solely rely on GetOnEngineStop because vehicle could have been pushed/moved into the water without started engine.
            GetGame().GetCallqueue().CallLater(CheckEngineDrowned, 5000, true);
        }
    }
}